Diol columns for Normal Phase in HPLC and UHPLC (USP L20)

Diol packing material can be universally used in different polar modes (NP, RP and HILIC). Diol bonded phases are a versatile alternative to unbonded silica for normal-phase separations with shorter equilibration times.

KNAUER columns with Diol modification

Eurospher II 100 OH

Eurospher 100 Diol

ProntoSIL 120 OH

Eurospher II 100 OH

Ultra pure, spherical high performance HPLC phase based on silica gel

Diol, no endcapping, with 5 % carbon content

Properties

hydrophilic interaction

Key features

High-class HPLC phase perfectly suited to take on routine analyses as well as the most ambitious chromatography tasks, classical Diol phase without endcapping and 5 % carbon content, outstanding mechanical and chemical stability

Recommended application areas

Alternative to the silica packing with shorter equilibration time and comparable selectivity; due to the lower activity of these packings it can be also used for SEC-applications

Eurospher 100 Diol

Ultra pure, spherical high performance HPLC phase based on silica gel

Diol, no endcapping, with 3 % carbon content

Eurospher 100 Diol packing material can be universally used in different polar modes (NP, RP and IC). The Eurospher silica gel is modified by a dihydroxypropyl reagent. Compared to the Eurospher Si packing material, it is less polar and requires less equilibration time. The strength of Eurospher 100 Diol has been proven in the determination of tetracyclins and non-ionic surfactants.

ProntoSIL 120 OH

Spherical high performance HPLC phase based on type A silica gel

Diol, no endcapping, with 8 % carbon content

ProntoSIL OH is a Diol bonded phase. The Diol packing is an alternative to the silica- packings. The equilibration time of the support is shorter in comparison to the corresponding silica support. The selectivities are comparable. Due to the lower activity of these packings they can also be used for SEC-applications. The OH bonding type is available in 120 Å and particle sizes of 3 μm and 5 μm.